Oil-burning stove.



I. P. HIGH & H. C. RATHBUN.

OIL BURNING STOVE.

APPLICATION FILED JUNE I6, I914.

1,137,970. Patented May 4, 1915.

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JAMES P. HIGH AND HARRY C. RATHBUN, OF FAIRVIEW, OKLAHOMA.

OIL-BURNING STOVE.

Specification of Letters Patent.

Patented May 4, 1915.

Application filed June 16, 1914. Serial No. 845,471.

To all whom it may concern:

Be it known that we, JAMES P. HIGH and HARRY C. RATI-IBUN, citizens ofthe United States, residing at Fair-view, in the county of Major andState of Oklahoma, have invented a new and useful Oil- Burning Stove, ofwhich the following is a specification.

The invention relates to improvements in oil burning stoves.

The object of the present invention is to improve the structure andefficiency of oil burning stoves, more especially that shown anddescribed in our application Serial No. 833,398, filed April 21, 1914and to equip the stove with means for confining the heat to a greaterextent within the stove, to render the latter more comfortable forcooking during the summer time.

A further object of the invention is to arrange the oil tank in acomparatively cool position, where it will require less air pressure andthereby render the stove safer and less expensive.

l Vith these and other objects in view the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated in the accompanying drawings, and pointed out in the claimshereto appended, it being understood that various changes in the form,proportion, size and minor details of construction, within the scope ofthe claims, may be resorted to without departing from the spirit orsacrificing any of the advantages of the invention.

In the drawings :Figure 1 is a vertical sectional view of an oil burningstove con structed in accordance with this invention. Fig. 2 is a planview of the same.

Like numerals of reference designate corresponding parts in both thefigures of the drawings.

In the accompanying drawings, in which is illustrated the preferredembodiment of the invention, the stove casing comprises in itsconstruction upper and lower substantially cylindrical telescopingsections 1 and 2 constructed of sheet metal or other suit able materialand adjustable to vary the distance between the top of the stove and theburner hereinafter described, whereby the heating effect may be variedto adapt the stove for different cooking operations, as explained in theaforesaid application. The lower section 2, which has an openingextending entirely through it, is provided at its lower end with anenlarged base 3 of cylindrical form, consisting of a vertical wall and ahorizontal connecting flange or portion 41 extending inwardly from theupper edge of the said Vertical wall to the lower edge of the lowercylindrical section 2 of the casing. The base, whicr; provided at anintermediate point with air inlet flared downwardly extending supportingflange 6 adapted to rest upon a supporting surface.

The outwardly extending base 3 supports an annular tank 7 designed tocontain oil or other liquid fuel and consisting of inner and outervertical concentric walls and top and bottom connecting walls. The tank7 is arranged in spaced relation with the lower section, of the casingto provide an intervening air space 8, which is open at the top, and thesupporting flange or portion of the base is provided at the air spacewith openings 9 to permit a portion of the air entering the, inletopenings 5 to pass directly upward through the space between the oiltank and the lower cylindrical section 2 of the casing. The oil tankterminates short of the upper end of the lower section 2 of the casing,which is jacketed to the head of the oil tank toconfine the head withinthe stove for the pur pose of protecting the fuel tank and for renderingthe stove more comfortable for cooking during the summer time. Thejacket consists of a lining 10 of asbestos or similar materialsurrounding the major portion of the lower section 2 of the casing, andarranged within a cylindrical sleeve 11 constructed of sheet metal orother suitable material and provided at the top with a flange 12. Thesleeve extends upwardly from the flange or connecting portion 4 of thebase and the top flange 12 fits against the section 2 and covers theupper edge of the asbestos lining. The jacket and the air space renderthe fuel tank comparatively cool, and prevent any radiation of heat atthis portion of the stove.

The oil or other fuel contained within the tank is forced outwardlytherefrom by air pressure, and is delivered to a combined generator andspreader 13 through a supply pipe 14 located within the base 3 and consisting of an upper leg or branch 15, a lower leg or branch 16, and avertical connecting openings 5, has a lower outwardly branch or portion17. The supply pipe is provided at one end of the upper branch portionwith acontrolling valve 18, which is connected with the adjacent portionof the oil tank by a threaded nipple 19 piercing the flange 4 of thebase and the bottom of the said tank. The combined generator andspreader 13, asexplained in the aforesaid application, preferablyconsists of a relatively thin hollow disk forming a shallow interiorchamber 20 and adapted to present 7 a relatively large amount of heatingsurface to the liquid fuel for vaporizing the same. The combinedgenerator and spreader receives right and left hand threaded portions 21and 22 of the upper leg or branch 15 of the supply pipe, and is.adapted'to be partially rotated toarrange it either in a horlzontalposition, as shown in full lines in Fig. 1 of the drawing, or 1n avertical posltlon, as

indicated in dotted lines in the said figure.

By'this construction the generator is adapt ed to be arranged forspreading or flaring the flame of the burner, and also to permit theflame to pass directly upward at the center. The lower leg or branch 16of the supply pipe constitutes a burner tube and is provided with a jetaperture 23 located centrally of the base at a point directly beneath 1ture 2a having a closure plug 25 carrying a tube 26 of small diameterand an air valve 27 similar to that with which an ordinary pneumatictire tube is equipped. -The tube 26, which consists of a hollow wire orthe like, extends from the closure plug to a i point adjacent to thebottom of the tank, so

that the air forced into the tank will be delivered to the same at thebottom thereof, and will be caused to pass upward through 3 the liquidfuel, which retains a certain amount of the air as the same is pumpedinto the tank. This results in a better qualityof gas, and the air alsoprevents a vacuum-from forming within the tank. By arranging the tankabove the plane of the burner, the oil is adapted to feed to the same bygravity, thereby reducing the air pressure and enabling the stove tooperate with a comparatively low pressure within the fuel tank.

The upper section 1. of the casing is provided with lateral outletopenings 28 located a short distancebelow the top wall 29, constructedas shown and described in the'aforesaid application, and consisting of-adisk, or plate suitably secured at its periphery to the vertical sidesor walls of the upper section. The top 29 is provided with outletopenings plate 33 in spaced relation with the top 29.

The central pivot 32,.which is suitably secured to the upper adjustableplate, extends downwardly from the center thereof and is provided with alaterally extending lug or projection 35' adapted to be passed through anotch or recess 36 of the top 29 at one side of the central opening 31.After the lug has been .passed through the notch or recess, the plate33-is partially rotated to carry the lug away from the saidnotch. orrecess. The upper section 1, which is slidable upwardly and downwardlyon the exterior ofthe lower section, is provided with opposite verticalslots 37, and has recesses or branches 38 extending from the slots and,adapted to be engaged by lugs or projections 39 mounted on and extendinghorizontally from the lower section. The vertical slots 37 extendupwardly from the lower edge of the upper section and the lugs orprojections and recesses provide an adjustable interlocking connectionbetween the upper and lower sections '1 and 2 of the casing. The uppersection is equipped with a hinged bail 1O having a suitable handle andadapted to permit the stove to be conveniently carried. The bail, whennot in use, is adapted to swing below the top of the stove. No claim ismade in the present application to the particular construction of theupper section of the casing or to the combined generator and spreader,as this construction forms a part of the subject matter of and isclaimed in the aforesaid application. 7 1

What is claimed is 1. A stove of the class described including a casingcomprising upper and lower telescopic sections provided at theiradjacent ends with means for adjustably connecting them, a hollow basesupporting the casing and projecting outwardly at the bottom of thelower section, and a fuel tank mounted upon the base andsurrounding thecasing, said tank being arranged in spaced relation with the casing andterminating short of the upper end of the lower section thereof.

stove of the class described including a casing, a base supporting thecasing and consisting of an outwardly extending horizontal flange and avertical wall connected with the said flange at the outer edge there ofand provided with openings, and '-a fuel tank mounted uponthe base inspaced relation with the casing and surrounding the same, said fueltankbeing supported upon the base and the flange thereof being pro-ovided with openings communicating with the interiorof the base and thespace be tween the casing and thetank.

3. A stove of the class described including a casing, a fuel tanksurrounding the casing in spaced relation therewith to provide anintervening air space, a base having a horizontal flange extendingacross the space between the casing and the fuel tank at the bottomthereof and supporting the said tank, a lining of non-heat conductingmaterial surrounding the casing at the said space, and a metallic sleeveincasing the said material and arranged in spaced relation With the fueltank.

In testimony, that We claim the foregoing as our own, We have heretoaflixed our signature in the presence of two Witnesses.

JAMES P. HIGH. HARRY C. RATHBUN. Witnesses:

J. S. BERGTHOLD, W. D. BOWLING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

